The applet illustrates the geometric interpretation of antiderivatives in terms of areas. It also illuminates the concept of accumulated change: the total change is the definite integral of the rate o...More: lessons, discussions, ratings, reviews,...

This model represents the interactions between members of a food chain; in this case, vegetation, rabbits and foxes. This simulation can be used to answer questions such as: What happens when vegetati...More: lessons, discussions, ratings, reviews,...

This material is based upon work supported by the
National Science Foundation under Grant DUE-0226284.
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National Science Foundation.